Metal serial tests are failing on webhook admission about provisioningDHCPRange

These two tests are permafailing on webhook errors related to the CRD:

[sig-installer][Feature:baremetal][Serial] A baremetal deployment without a provisioning network should show the Provisioning Network as 'Disabled' [Suite:openshift/conformance/serial]

[sig-installer][Feature:baremetal][Serial] A baremetal deployment without a provisioning network should [apigroup:config.openshift.io] show the Provisioning Network as 'Disabled' [Suite:openshift/conformance/serial]

[sig-installer][Feature:baremetal][Serial] A baremetal deployment without a provisioning network should allow setting the ProvisioningNetwork to 'Managed' with valid settings [Suite:openshift/conformance/serial]

[sig-installer][Feature:baremetal][Serial] A baremetal deployment without a provisioning network should [apigroup:config.openshift.io] allow setting the ProvisioningNetwork to 'Managed' with valid settings [Suite:openshift/conformance/serial]

job=periodic-ci-openshift-release-master-nightly-4.12-e2e-metal-ipi-sdn-serial-virtualmedia=all

Example run:
https://prow.ci.openshift.org/view/gs/origin-ci-test/logs/periodic-ci-openshift-release-master-nightly-4.12-e2e-metal-ipi-sdn-serial-virtualmedia/1567416810377056256

Sippy links:

https://sippy.dptools.openshift.org/sippy-ng/tests/4.12/analysis?test=%5Bsig-installer%5D%5BFeature%3Abaremetal%5D%5BSerial%5D%20A%20baremetal%20deployment%20without%20a%20provisioning%20network%20should%20allow%20setting%20the%20ProvisioningNetwork%20to%20%27Managed%27%20with%20valid%20settings%20%5BSuite%3Aopenshift%2Fconformance%2Fserial%5D

https://sippy.dptools.openshift.org/sippy-ng/tests/4.12/analysis?test=%5Bsig-installer%5D%5BFeature%3Abaremetal%5D%5BSerial%5D%20A%20baremetal%20deployment%20without%20a%20provisioning%20network%20should%20show%20the%20Provisioning%20Network%20as%20%27Disabled%27%20%5BSuite%3Aopenshift%2Fconformance%2Fserial%5D